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Matches 651 - 700 out of 3,026

Document Document Title
WO/1991/014716
Slurry copolymerization of maleic anhydride with (meth)acrylic acid and, optionally, with C�1?-C�4? alkyl vinyl ether in a cosolvent system of cyclohexane and ethyl acetate yields a pumpable slurry, from which uniform, fine, white po...  
WO/1991/014720
Copolymers are produced when 3,4-epoxy-1-butene (EpB) is copolymerized with maleic anhydride. The copolymerization is initiated by free radicals, and comprises both 1,2-propagation and 1,5-propagation of EpB. When an ether is used as the...  
WO/1991/013922
In one embodiment this invention provides vinylidene copolymer with alternating monomeric units as illustrated by structure (I). An invention vinylidene copolymer in the form of an electret film exhibits a high level of longitudinal piez...  
WO/1991/013101
A method is disclosed for the catalytic polymerization of cyanoacrylate monomers by contacting said monomers with an organotin compound. Also included is a polymerizable system comprising cyanoacrylate monomer and an organotin compound, ...  
WO/1991/010689
A polymerization process is described herein for making crosslinked copolymers of maleic anhydride and an alkyl vinyl ether characterized in that polymerization is carried out in a solvent system which is a mixture of a carboxylic acid e...  
WO/1991/009888
The invention relates to copolymers with an average content of 1.25 to 30 functional groups per molecule and an average molecular weight of from 1500 to 6000 which can be produced by radical solution polymerisation at 130 to 200 �C fro...  
WO/1991/005812
Imide-containing polymers of styrene-type monomers are prepared by a process comprising solution polymerizing under free radical polymerization conditions a polymerizable monomer composition comprising at least one vinylaromatic monomer ...  
WO/1991/005002
A thermosetting resin is comprised of (a) a bisimide, particularly a bismaleimide, (b) a polyphenol, particularly a bisphenol, and (c) dicyandiamide. The polyphenol may be styrene-terminated (i.e. a vinyl benzyl ether of a bisphenol). Fl...  
WO/1991/004959
A process for preparing an oligomeric copolymer of an unsaturated acidic reactant and a high molecular weight olefin having a sufficient number of carbon atoms such that the resulting copolymer is soluble in lubricating oil and wherein a...  
WO/1991/003521
The invention relates to polymers containing units of the structure (A) and (B) or (B-1) or (B-2), or mixtures of A with more than one of B, B-1 and B-2; wherein R and R1 are each independently C1 to C18 alkyl; R2 is oxygen, sulfur or -N...  
WO/1991/002013
Curable bisimide compositions containing at least one biscitraconimide having general formula (I), wherein D is a divalent group, R is CH2-R1, and R1 is independently selected from hydrogen and alkyl groups having 1-18 carbon atoms; at l...  
WO/1991/002094
Copolymerizates obtained by radical copolymerization of (a) C�8? to C�40? alkyl vinyl ethers, possibly mixed with up to 50 mol-% of C�8? to C�40? monoolefins, with (B) ethylenically unsaturated C�4? to C�8? dicarboxylic acid ...  
WO/1991/000886
APO-BMI is chain-extended with certain diamines to provide thermosetting resins retaining the improved properties of APO-BMI resins, but having increased toughness in the cured resins.  
WO/1991/000879
A curable composition comprising at least one biscitraconimide unit having formula (I), wherein D is a divalent group, R is CH2-R1 and R1 is independently selected from the group consisting of hydrogen and alkyl groups having 1 to 18 car...  
WO/1991/000302
What is described herein is a precipitation polymerization process and terpolymer products produced thereby. Polymerization is carried out in a reaction mixture of a vinyl lactam, e.g. vinyl pyrrolidone or vinyl caprolactam, a polymeriza...  
WO/1990/015854
Electro-optical liquid crystal system containing nematic microdrops embedded in a transparent matrix and consisting of a liquid crystal mixture, in which, in order to increase the flow viscosity to values greater than 40 mm?2¿/s at 20°...  
WO/1990/015100
A thermoplastic copolymer having excellent thermal resistance and transparency and high mechanical strengths, and comprising a terpolymer composed of 30 to 70 % by weight of aromatic vinyl compound units, 4 to 40 % by weight of vinyl cya...  
WO/1990/014314
Water-soluble copolymerizates obtained by polymerization of the following characteristic monomers: (a) 99 to 50 wt.% of monoethylenically unsaturated carboxylic acids with 3 to 8 carbon atoms or their salts and (b) 1 to 50 wt.% of N-viny...  
WO/1990/012821
Copolymerizates are formed by polymerization of the characteristic monomers (a) 10 to 60 mol. % of monoethylenically unsaturated dicarboxylic acid anhydrides with 4 to 8 carbon atoms, (b) 5 to 60 mol. % of diketens and (c) 0.5 to 60 mol....  
WO/1990/012817
What is described herein is a process for making copolymers of maleic anhydride and a C1-C8 alkyl vinyl ether. In this process, a reactor is precharged with a solution of maleic anhydride in a sterically hindered monoether solvent and th...  
WO/1990/012037
A solution feed, solution polymerization method for making copolymers of maleic anhydride and an alkyl vinyl ether is described. In this process, maleic anhydride in a functional organic solvent is fed into a reactor precharged with an a...  
WO/1990/012036
What is described herein is a solution feed, slurry precipitation polymerization process for making copolymers of maleic anhydride and an alkyl vinyl ether within a predetermined viscosity range. The process of the invention is character...  
WO/1990/012041
What is described herein is a precipitation polymerization process and copolymer products produced thereby. Polymerization is carried out in a reaction mixture of a vinyl lactam, e.g. vinyl pyrrolidone or vinyl caprolactam, and a polymer...  
WO/1990/011306
The invention relates to a hydrogel which is a copolymer of a polymerizable monomer mixture which contains a) 5-95 mole % of a hydrophobic polyhydroxyvinyl monomer whose hydroxyl groups are in protected form, b) 5-95 mole % of a hydrophi...  
WO/1990/011317
Solution blending of (a) a conductive polymer containing carbon-nitrogen linkages, such as polyaniline, having an organic group or an inorganic group, e.g., derived from an anhydride or an aromatic multisulfonic acid, covalently linked t...  
WO/1990/010661
Free-radical curable compositions contain a (meth)acrylate oligomer and at least one of a single functional diluent, a mixture of single functionality diluents and a dual functional monomer wherein the ratio of electron-rich double bonds...  
WO/1990/009410
Thermosetting resins for use in high performance fiber-reinforced composites are toughened without compromising their processibility by the inclusion of micron-sized particles of thermoplastic material which are solid at ambient temperat...  
WO/1990/006650
The invention relates to a watching system for improving the security of lonely, aged or infirm persons, which is based on a normal telephone system. As the alarm to be given by the watched person with present systems might not be carrie...  
WO/1990/003851
Said process uses an aqueous transparent protective covering compound containing a polyacrylic resin as a binding agent. The polyacrylic resin is produced by adding to an organic solvent, one after the other or in alternate smaller quant...  
WO/1990/002766
Aqueous emulsion copolymerizates of (meth)acrylates of long-chain alcohols in closed aqueous phase contain the following monomer components as disperse-phase copolymerizates with long storage life: at least 50 wt.%, preferably at least 6...  
WO/1990/002764
The present invention is a polymeric composition comprising vinylidene chloride with improved thermal stability. The process comprises either advance addition or polymer slurry addition of a salt of a nonalkenic weak acid during the poly...  
WO/1990/002480
The present invention is a polymeric composition comprising vinylidene chloride with improved thermal stability. The process comprises either advance addition or polymer slurry addition of a salt of a nonalkenic weak acid during the poly...  
WO/1990/001040
A novel polyanhydride having at least two cyclic carboxylic acid anhydride groups per molecule also contains pendent amine groups, the proportion of amine groups to cyclic carboxylic acid anhydride groups being no more than 4:1 and the c...  
WO/1989/012085
Molecular building beams, liquid crystals, and surfactants in the form of compounds based on [1.1.1]propellane, including poly[1.1.1]propellanes. Molecular building beams having a telomeric or polymeric chain staff, and linking groups fu...  
WO/1989/010379
A thermosetting resin is comprised of (a) a bisimide, particularly a bismaleimide, (b) a polyphenol, particularly a bisphenol, and (c) dicyandiamide. The polyphenol may be styrene-terminated (i.e. a vinyl benzyl ether of a bisphenol).  
WO/1989/009236
Group Transfer Polymerization wherein the catalyst consists essentially of: (a) about 10 to 100 mol % of a silane of specific formula; and (b) 0 to about 90 mol % of at least one of a suitable Lewis acid or mercury compound.  
WO/1989/005315
A resin composition for a composite material comprising the following indispensable ingredients: (A) a mixture of three kinds of bismaleimides, i.e., N,N'-diphenylmethanebismaleimide, N,N'-tolylenebismaleimide, and N,N'-trimethylhexameth...  
WO/1989/004845
Nitrogen-containing esters of a carboxy-containing interpolymer, wherein the interpolymer has an inherent viscosity ranging from about 0.05 to 0.30 are disclosed. The esters are useful as additives in functional fluids including transmis...  
WO/1989/004332
Novel compositions of matter comprising ladder copolymers resulting from the reaction between a poly(vinyl benzyl ether) of a polyphenol and a bismaleimide or a chain extended bismaleimide may be used as components in laminates which are...  
WO/1989/000170
A curable composition which contains mono- and poly-functional acrylate monomers and an acidic group-containing acrylate monomer containing at least one acryloyloxy group per molecule, monofunctional acrylamide monomer, trialkylboron and...  
WO/1988/005442
An improved hair spray resin comprising microspheres of vinyl acetate/mono-n-C4-C5 alkyl maleate/an isobornyl acrylate terpolymer in a molar ratio of about 1:0.35-1:0.05-0.25 and a one-step suspension polymerization process for the prepa...  
WO/1988/002759
A novel latex containing a polymer having an exceptional balance of physical properties is prepared by polymerizing at least one unsaturated dicarboxylic acid with a copolymerizable monomer(s) and, optionally, a crosslinking monomer in t...  
WO/1988/002380
A process for producing a heat resistant resin composition, which comprises polymerizing by suspension polymerization a monomer mixture comprising from 30 to 80 % by weight of an aromatic vinyl monomer, from 10 to 50 % by weight of an N-...  
WO/1987/001383
Method of bonding a first solid substrate to a second solid substrate. The method is characterized by applying a functionally effective amount of an arylcyclobutene monomeric composition to a surface of the first substrate. The substrate...  
WO/1986/006732
A process for producing a maleimide copolymer by emulsion polymerization of an aromatic vinyl monomer, a vinyl cyanide monomer, and a maleimide monomer in a specific mixture ratio, which comprises feeding an aromatic vinyl monomer in an ...  
WO/1986/004337
A process for producing maleimide copolymer, which comprises conducting suspension polymerization of a maleimide monomer and at least one monomer selected from the group consisting of an aromatic vinyl monomer, vinyl cyanide monomer, and...  
WO/1986/003501
Process for copolymerization of vinylpyrrolidone and maleic anhydride in the presence of organic solvent, catalyst and between about 0.1 and 1.0 weight % water.  
WO/1986/001519
Aqueous emulsion copolymer composition useful as a textile treatment to provide superior durability to repeated washing and dry cleaning and increased stability to prolonged heat and light, to methods of preparing the aqueous emulsion po...  
WO/1984/004097
The telomers comprise a telogene of the mercaptan family and more particularly the dodecanethiol and links of a taxogene of the family of acrylics amongst which certain are grafted. The synthesis of those telomers is carried out semicont...  
WO/1981/002739
A novel bisimide matrix resin system comprising 50 to 95 percent by weight of ethylenically unsaturated bis-imides, preferably a low melting mixture of a major portion of maleimides of aromatic amines with a minor portion of maleimide of...  

Matches 651 - 700 out of 3,026